Earlier today I speculated that Donald Trump’s support could be partially attributable to the success of a demagogic strategy focused on non-college-educated white voters. After all, these are increasingly the voters at the center of the GOP “base,” but who do not necessarily share the views of GOP elites on immigration, trade policy or entitlements; neither does Donald Trump.

But it hasn’t been that clear that Trump’s fans were paying any attention to his issue positions aside from his abrasive Mexican-baiting and his general screw-you attitude to anyone who crossed him. And some early takes on Trump’s following–including one by the much-esteemed Nate Silver–didn’t find any particular constituency he seemed to be attracting, other than people susceptible to media manipulation.

Today’s new WaPo/ABC poll, though, shows Trump’s suddenly inflated position in the Republican field being based very heavily on the white working class vote. He’s at 33% among white non-college educated Republicans (and Republican leaners), and 9% among white college educated GOPers (and leaners). There was a similar big education tilt among Trump supporters in an earlier Fox News poll.

Yes, non-college-educated voters disproportionately tend to be “low-information” voters who don’t particularly care if their betters think Trump’s vulgar. But then again, GOP elites think anyone who opposes entitlement cuts or trade agreements or at least some form of immigration reform are “vulgar,” too, so maybe Donald Trump as a right-wing “populist” with a conservative working class base of support makes more sense than one might initially imagine.

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Ed Kilgore is a political columnist for New York and managing editor at the Democratic Strategist website. He was a contributing writer at the Washington Monthly from January 2012 until November 2015, and was the principal contributor to the Political Animal blog.